Attachment for revolvers



Sept. 14 1926. 1,599,651

R. coRsoN ATTACHMENT FOR REVOLVERS Filed Jan. 5, 1926 Inventor '7 r 2 I 5 f 44M; 0/6027.

Patented Sept. 14, 1926.

RALPH CORSON, OF GREAT FALLS, MONTANA.

.ATTAGHMEN T FOR REVOLVEBJS.

Application filed January 5, 1926.. Serial No. 79,369.

of the revolver whereby a single revolver may be used for shooting cartridges of different calibers.

' Another important object of the invention is to provide a revolver attachment of the above mentioned character wherein means is associated therewith for cooperation with the barrel of the revolver to pre vent said auxiliary barrel being accidentally displaced from the barrel of the revolver when a cartridge is exploded and fired out through the bore of the barrel.

'A still further object is to provide a revolver attachment of the above mentioned character which is simple in construction, inexpensive, strong and durable and further well adapted to the purpose for which it is designed.

Other objects and advantages of the invention will become apparent during the course of the following description taken in connection with the accompanying drawing.

In the accompanying drawing forming a part of this application, and in which like numerals designate like parts throughout the several views:

Figure 1 is a side elevation of a portion of a revolver of any well known construction, showing my attachment positioned in the barrel of the revolver.

Figure 2 is an enlarged side elevation of the forward end of the barrel of the revolver showing the manner in which the forward end of the auxiliary barrel engages and is secured on the barrel of the revolver.

Figure3 is a similar view illustrating the locking bail in its unlocked position with respect to the sight on the barrel of the revolver.

Figure 4 is a front elevation of the auxiliary barrel fitted in the barrel of the revolver.

Figure 5 is a longitudinal sectional view through the auxiliary barrel.

Figure 6 is a detail perspective View of the crank lever forming a part of the pres ent invention, and

Figure 7 is a longitudinal sectional view of the auxiliary barrel showing the same associated with a single shot pistol.

In the drawing, wherein for the purpose of illustration is shown the preferred embodiment of my invention, the numeral 1 designates the barrel of a revolver of any well known construction, the bore of said barrel being of any caliber, such as for instance .38; .42; .415, etc. The usual revolvable cylinder which is provided with the cartridge receiving chamber is indicated generally' at 2 in the drawing, and the elongated pin or bolt on which the cylinder revolves, is shown at 3. The usual sight formed on the top of the barrel adjacent the forward end thereof is indicated at 4.

In order that the revolver may be em ployed for firing cartridges of different calibers, particularly cartridges of a smaller caliber than that which are ordinarily used in connection with the revolver, I have provided an auxiliary barrel 5 which is of a slightly greater length than the barrel 1 and the outer diameter of the auxiliary barrel is slightly less than the inner diameter or the bore of the barrel 1, so that the auxiliary barrel may be fitted within the barrel of the revolver. The bore 6 of the auxiliary barrel 5 is of a predetermined diameter to accommodate a cartridge of a smaller caliber than that which is ordinarily used in the revolver. It will of course be understood thatthe cylinder 2 will be interchangeable so that the chambers thereof will. be of such size as to accommodate cartridges of the same caliber as the bore of the auxiliary barrel, the cylinder being readily removable from the revolver in the manner well known in the art.

A projection in the form of a block is formed on the bottom of the auxiliary barrel 5 adjacent the forward end thereof as indicated at 7 and the inner end of this block is adapted to abut a forward or outer lower edge portion of the barrel 1 whereby the inward sliding movement of. the auxiliary barrel with respect to the revolver barrel is limited. As. is more clearly shown in Figure 5 of the drawing, the inner end of the bore 6 of the auxiliary barrel 5 is flared so that the projectile may easily enter the auxiliary barrel when the revolver is fired. The bore of the auxiliary barrel is further turned with the spiral formation in the same manner as the ordinary barrel of the revolver for the purposes well known in the art.

For the purpose of preventing the rotation of the auxiliary barrel with respect to the barrel 1 of the revolver, there is formed on the inner end of the block 7 the projection 8, the same being adapted to enter a notch 9 provided therefor in therforward outer end of the barrel 1 in the manner as clearly illustrated in Figures 2 and 3.

For further locking the auxiliary barrel within the main barrel 1, so that the auxiliary barrel will be prevented from being forced outwardly of the main barrel when the revolver is used, there is provided, a locking bail 10, the same being formed of a single strand of wire." Cooperating with the bail 10 is the crank lever designated generally by the numeral-11, the intermediate portion 12 thereof extending transversely through the block 7, itbeing adapted for rotation therein, the laterally disposed ends 13 of said crank extending beyond the sides of the block. The free ends of the bail 1O encircle the respective laterally disposed end 13 of the crank, the bail being adapted to be disposedover the main barrel 1, and being further adapted for cooperation with the sight 4. Extending rearwardly from one of the laterally extending portions 13 of the crank 11 is a suitable actuating handle 14, the free end thereof being disposed inwardly as at 15 so as to normally lie below the bottom of the forward portion of the main barrel 1 of the revolver. When the crown portion of the bail 10 is in engagement with the rear or inner edge-portion of the sight 4 and the handle 14; is disposed against the bottom of the forward portion of the main barrel 1, the auxiliary barrel 5 will be locked Within the main barrel against ont- Ward sliding movement with respect thereto.

In order to facilitate the removal of the auxiliary barrel from the main barrel, the handle 1a is swung downwardly by grasping the inwardly disposed portionlt'; thereof so as to cause the crank 11 to rotate within the block 7 and due to the connection between the laterally disposed. end 13' of the crank, and the respective ends of the bail 10,

the latter will also be swung to be moved rearwardly along the upper portion of the main barrel so as to be free of the sight 4,

thus enabling the bail tobe swung over the sight in the direction of the arrow and when the parts are arranged as shown in the dotted lines in Figure 3, the auxiliary barrel will then be free to be removed-from the main barrel. I

The provision, of an attachment of the above mentioned character enables auxiliary barrels having bores of different diameters yet having their outer diameters of the same or substantially the same diameter of the bore of the main barrel 1 to be used with a p I revolver so that a singlerevolver may be employed for firing cartridges of different calibers.

In Figure 7 of the drawing the auxiliary The simplicity in which my device is constructed, enables the same to be readily and easily inserted in or removed from the main barrel of the revolver and furthermore will at all times be positive and etlicie'nt in carrying out the purposes for which it is designed.

While I bodiment of my invention, it is to be nnderstood that minor changes in the size, shape, and arrangement of parts maybe resorted to without departing from the spirit or scope of theinvention.

Having thus described the. what I claim as new is 1. An attachment for revolvers comprising an auxiliary barrel of a greater length to be fitted therein, a projection formed on the bottom of the forward portion of the auxiliary barrel and adapted to abut the forward end of the revolver barrel, a nib formed on the inner end of theprojection, the forward end, of the revolver barrel being provided with'a notch for cooperating with said nib whereby the auxiliary barrel is prevented from rotating within the revolver barrel.

, 15' i have shown the preferred, em-

invention,

than the barrel of the revolver and adapted 2. An attachment, for revolvers wherein the latter includes a barrel, and a sight arranged on the top of the forward outer end of said barrel, said attachment comprising an auxiliary barrel of greater length than barrel and coo aerating with the rearred e c V o r 0 portion or the sight on the revolver barrel to prevent the outward slidingmovement of the auxiliary barrel, and a lever associated with one end of the crank shaftfor actuating the same whereby the bail may be swung upwardly out of engagement with said sight to facilitate the removal of the auxiliary barrel from therevolverbarrel.

ture.

RALPH GORfiON.

In testimonywhereof I affix my signa- 

